<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>div和span标签</title>
</head>
<body>
<!--div: 块元素 特点:独占一行-->
   <div>div</div>
<!--span: 行内元素 -->
   <span>span</span>
   <span>span</span>
   <div>div</div>
</body>
</html>